The bottom line, it will be very tough to do both. I've been training BJJ for 3-4 years and started SS in November. SS to get stronger, in the hopes that the strength would carry over to my jiu-jitsu (it has).
You have to remember that both activities are best approached from a longterm perspective - a marathon, not a sprint. If you're doing SS as programmed, which is probably a good idea, that means 3 days/week with plenty of rest to recover. I found that I was only able to roll 1 day/week, because I was frankly wiped out most of the time. I'm 34 so not much younger than you. SS just kicked my ass in terms of feeling tired, stiff, etc. If you're doing SS full-bore, it will feel the same as training BJJ 6 days/week.
I don't know what your goals are, but if you want to get stronger, I would suggest that you prioritize SS for at least 3 months, maybe rolling a day, two days max per week. No running whatsoever. Eat lots to sustain your growth. In a few months, you'll be a strong mother f'er and then you can switch it up.
Food for thought - I was rolling with a 185 lb. brown belt today who typically plays very heavy from the top. This is the first time I've rolled with him in about two months. I was able to fight off his attacks and then I literally pressed him up into the air and tossed him off me, and was able to scramble to a better position. No technique really, it was a pure strength move. Never would have been able to do that before.